Abstract

Scaling properties of resonant electron transfer processes occurring in the interaction of slow atoms and (positive) ions with metal surfaces are studied theoretically. Transition matrix elements and rates calculated within a simple model are analyzed as a function of a scaled ion-surface distance. Scaling laws involving a universal function of the scaled distance are established that connect transition rates for different ionic principal quantum numbers. The scaling laws apply, in particular, to the cases of resonance ionization of Rydberg atoms and of resonance neutralization of highly charged ions.

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